Anti-aging durable rubber sealing gasket

Abstract

The utility model discloses an anti-aging durable rubber sealing gasket which comprises a sealing gasket body, a groove is formed in the top of the sealing gasket body, an inert silica gel filling layer is filled in the groove, a plurality of protection strips are arranged on the outer side of the sealing gasket body, and an outer abrasion-resistant layer is coated on the surface of the outer side of the sealing gasket body. A plurality of fixing protrusions are evenly fixed to the bottom of the sealing gasket body, the fixing protrusions are filled with a plurality of magnetic particles, and the sealing gasket body comprises a fluororubber aging-resistant layer, an ethylene propylene diene monomer elastic layer and a nitrile rubber wear-resistant layer. Through the composite structural design of the fluororubber anti-aging layer, the ethylene propylene diene monomer elastic layer and the nitrile rubber wear-resistant layer, the anti-aging performance and the wear-resistant performance of the rubber sealing gasket are remarkably improved, and the service life of the sealing gasket is prolonged; and the inert silica gel filling layer and the metal spring wires are added, so that the structural strength and fracture resistance of the sealing gasket are enhanced, and the problems of cracking and aging caused by stress concentration in the using process are effectively prevented.

Description

Technical Field

[0001] This utility model relates to the field of rubber sealing gasket technology, specifically to an anti-aging and durable rubber sealing gasket. Background Technology

[0002] Rubber gaskets are specially designed to achieve a sealing effect, and they are typically made of rubber, a soft and elastic material. These gaskets play a vital role in industrial and everyday life because they effectively prevent the leakage of liquids or gases, thus maintaining the integrity and safety of systems. In addition to their basic sealing function, rubber gaskets also provide shock absorption and cushioning, making them widely used in various mechanical equipment and piping systems.

[0003] However, traditional rubber gaskets encounter some insurmountable problems during use:

[0004] (1) Due to its design limitations, the stress concentration at the edges is quite obvious, which makes it prone to cracking and aging during long-term compression use;

[0005] (2) Since rubber gaskets usually use a single material structure, it is difficult for them to meet the requirements of good elasticity and aging resistance at the same time in practical applications. Therefore, in some specific applications, their performance may not meet the expected standards.

[0006] (3) The surface of the rubber gasket is directly exposed to various corrosive environments. This direct contact will accelerate the aging process of the material, thereby shortening its service life and increasing the frequency and cost of maintenance and replacement. Utility Model Content

[0007] The purpose of this invention is to provide an anti-aging and durable rubber sealing gasket to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, this utility model provides the following technical solution: an anti-aging and durable rubber sealing gasket, comprising a sealing gasket body, a groove formed at the top of the sealing gasket body, the groove being filled with an inert silicone filling layer, multiple protective strips on the outer side of the sealing gasket body, an outer wear-resistant layer coated on the outer surface of the sealing gasket body, and multiple fixing protrusions uniformly fixed at the bottom of the sealing gasket body, the interior of the fixing protrusions being filled with multiple magnetic particles. The sealing gasket body includes a fluororubber anti-aging layer, an EPDM rubber elastic layer, and a nitrile rubber wear-resistant layer. An EPDM rubber elastic layer is disposed inside the fluororubber anti-aging layer, a nitrile rubber wear-resistant layer is disposed inside the EPDM rubber elastic layer, and a metal spring wire is disposed inside the nitrile rubber wear-resistant layer.

[0009] The inert silicone filling layer absorbs edge stress and prevents crack propagation. The metal spring wires within the nitrile rubber wear-resistant layer further enhance its structural strength, wear resistance, and fracture resistance. Magnetic particles filling the fixed protrusions strengthen the adhesion to metal mounting surfaces. The outer wear-resistant layer, made of high-strength, wear-resistant synthetic rubber, effectively resists external wear and extends the gasket's lifespan. The fluororubber aging-resistant layer improves the gasket's aging resistance, maintaining good elasticity and sealing performance even under harsh environments. The EPDM rubber elastic layer ensures the gasket quickly returns to its original shape under pressure, maintaining a stable seal. The protective strip not only strengthens the gasket's edge strength but also prevents damage from external impacts.

[0010] Preferably, the inner side of the sealing gasket body is provided with anti-slip texture, and the bottom of the sealing gasket body is also provided with grid-distributed reinforcing ribs. The anti-slip texture design further improves the anti-slip performance of the sealing gasket body and enhances the stability of the connection; the grid-distributed reinforcing ribs are used to improve the overall structural strength of the sealing gasket body, enabling it to better withstand external pressure and impact during use, further extending its service life. In addition, the reinforcing ribs can also optimize the stress distribution of the sealing gasket body, reducing cracking and aging caused by stress concentration, thereby improving the overall durability.

[0011] Preferably, the metal spring wires are spirally distributed within the nitrile rubber wear-resistant layer, and the diameter of the metal spring wires is 0.5-1 mm. The spiral distribution of the metal spring wires not only effectively improves the strength and toughness of the nitrile rubber wear-resistant layer, but also enhances its tensile and compressive strength.

[0012] Preferably, the groove depth is 1-2 mm and the groove spacing is 3-5 mm.

[0013] Preferably, the inner side of the sealing gasket body is coated with a self-healing polyurethane coating. The self-healing polyurethane coating can automatically fill microcracks on the inner side of the sealing gasket body.

[0014] Preferably, the sealing gasket body is annular.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] The composite structure design of the fluororubber aging-resistant layer, the EPDM rubber elastic layer, and the nitrile rubber wear-resistant layer significantly improves the aging resistance and wear resistance of the rubber gasket, extending its service life. The addition of the inert silicone filling layer and metal spring wire enhances the structural strength and fracture resistance of the gasket, effectively preventing cracking and aging caused by stress concentration during use. The magnetic particles filled inside the fixing protrusion enhance the adhesion between the gasket and the metal mounting surface, improving installation stability and sealing effect. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the sealing gasket body of this utility model;

[0018] Figure 2 This is a schematic diagram of the groove and sealing gasket body of this utility model;

[0019] Figure 3 This is a cross-sectional view of the sealing gasket body of this utility model;

[0020] Figure 4 This is a bottom view of the present invention.

[0021] In the diagram: 1. Sealing gasket body; 2. Inert silicone filling layer; 3. Outer wear-resistant layer; 4. Protective strip; 5. Anti-slip texture; 6. Groove; 7. Fluororubber aging-resistant layer; 8. EPDM rubber elastic layer; 9. Nitrile rubber wear-resistant layer; 10. Metal spring wire; 11. Fixing protrusion; 12. Magnetic particles; 13. Reinforcing rib. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0023] Please see Figure 1-4 This utility model provides an anti-aging and durable rubber sealing gasket, including a sealing gasket body 1. The top of the sealing gasket body 1 has a groove 6, which is filled with an inert silicone filling layer 2. The outer side of the sealing gasket body 1 has multiple protective strips 4. The outer surface of the sealing gasket body 1 is coated with an outer wear-resistant layer 3. The bottom of the sealing gasket body 1 has multiple fixing protrusions 11 evenly fixed, and the interior of the fixing protrusions 11 is filled with multiple magnetic particles 12. The sealing gasket body 1 includes a fluororubber anti-aging layer 7, a EPDM rubber elastic layer 8, and a nitrile rubber wear-resistant layer 9. The inner side of the fluororubber anti-aging layer 7 is provided with an EPDM rubber elastic layer 8, the inner side of the EPDM rubber elastic layer 8 is provided with a nitrile rubber wear-resistant layer 9, and the interior of the nitrile rubber wear-resistant layer 9 is provided with a metal spring wire 10.

[0024] Specifically, the inert silicone filler layer 2 absorbs edge stress and prevents crack propagation. The metal spring wire 10 inside the nitrile rubber wear-resistant layer 9 further enhances its structural strength, wear resistance, and fracture resistance. The magnetic particles 12 inside the fixing protrusion 11 strengthen the adhesion to the metal mounting surface. The outer wear-resistant layer 3 is made of high-strength, wear-resistant synthetic rubber, effectively resisting external wear and extending the gasket's service life. The fluororubber aging-resistant layer 7 improves the gasket's aging resistance, maintaining good elasticity and sealing performance even under harsh conditions. The EPDM rubber elastic layer 8 ensures the gasket quickly returns to its original shape under pressure, maintaining a stable seal. The protective strip 4 not only strengthens the edge strength of the gasket but also prevents damage from external impacts.

[0025] The inner side of the sealing gasket body 1 is provided with anti-slip texture 5, and the bottom of the sealing gasket body 1 is also provided with reinforcing ribs 13 distributed in a grid pattern.

[0026] Specifically, the anti-slip texture 5 design further improves the anti-slip performance of the sealing gasket body 1 and enhances the stability of the connection. The grid-distributed reinforcing ribs 13 are used to improve the overall structural strength of the sealing gasket body 1, enabling it to better withstand external pressure and impact during use, thus further extending its service life. In addition, the reinforcing ribs 13 can also optimize the stress distribution of the sealing gasket body 1, reducing cracking and aging caused by stress concentration, thereby improving the overall durability.

[0027] Metal spring wire 10 is spirally distributed within the nitrile rubber wear-resistant layer 9, and the diameter of metal spring wire 10 is 0.5-1mm.

[0028] Specifically, the spiral distribution of the metal spring wire 10 can not only effectively improve the strength and toughness of the nitrile rubber wear-resistant layer 9, but also enhance its tensile and compressive strength.

[0029] The groove 6 has a depth of 1-2 mm and a groove spacing of 3-5 mm. The sealing gasket body 1 is annular. The inner side of the sealing gasket body 1 is coated with a self-healing polyurethane coating.

[0030] Specifically, the self-healing polyurethane coating can automatically fill the micro-cracks on the inside of the sealing gasket body 1.

[0031] In practical use, the operator can place the rubber sealing gasket of this utility model at the location requiring sealing. The magnetic particles 12 inside the fixed protrusion 11 enhance the adsorption force with the metal mounting surface, achieving stable installation. The inert silicone filling layer 2 filled in the groove 6 at the top of the sealing gasket body 1 effectively absorbs edge stress, preventing cracking caused by stress concentration during use. Simultaneously, the metal spring wire 10 inside the nitrile rubber wear-resistant layer 9 further improves structural strength, enhancing wear resistance and fracture resistance. The composite structure design of the fluororubber aging-resistant layer 7, the EPDM rubber elastic layer 8, and the nitrile rubber wear-resistant layer 9 ensures that the sealing gasket maintains good elasticity and sealing performance even after long-term use in harsh environments. When micro-cracks appear on the inner side of the sealing gasket, the self-healing polyurethane coating can automatically fill them, further extending the service life of the sealing gasket.

[0032] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An anti-aging, long-lasting rubber gasket comprising a gasket body (1), characterized in that, The top of the sealing gasket body (1) is provided with a groove (6), the groove (6) is filled with an inert silica gel filling layer (2), the outer side of the sealing gasket body (1) is provided with a plurality of protective strips (4), the surface of the outer side of the sealing gasket body (1) is coated with an outer wear-resistant layer (3), the bottom of the sealing gasket body (1) is uniformly fixed with a plurality of fixed protrusions (11), the inside of the fixed protrusion (11) is filled with a plurality of magnetic particles (12), the sealing gasket body (1) comprises a fluorine rubber anti-aging layer (7), a three-element ethylene-propylene rubber elastic layer (8) and a butadiene-acrylonitrile rubber wear-resistant layer (9), the inner side of the fluorine rubber anti-aging layer (7) is provided with the three-element ethylene-propylene rubber elastic layer (8), the inner side of the three-element ethylene-propylene rubber elastic layer (8) is provided with the butadiene-acrylonitrile rubber wear-resistant layer (9), and the inside of the butadiene-acrylonitrile rubber wear-resistant layer (9) is provided with a metal spring wire (10).

2. The anti-aging, long-lasting rubber gasket of claim 1, wherein: The inner side of the sealing gasket body (1) is provided with anti-skid lines (5), and the bottom of the sealing gasket body (1) is further provided with grid-shaped reinforcing ribs (13).

3. The anti-aging, long-lasting rubber gasket of claim 1, wherein: The metal spring wire (10) is spirally distributed in the butadiene-acrylonitrile rubber wear-resistant layer (9), and the diameter of the metal spring wire (10) is 0.5-1mm.

4. The anti-aging, long-lasting rubber gasket of claim 1, wherein: The depth of the groove (6) is 1-2mm, and the groove distance is 3-5mm.

5. The anti-aging, long-lasting rubber gasket of claim 1, wherein: The inner side of the sealing gasket body (1) is coated with a self-repairing polyurethane coating.

6. The anti-aging, long-lasting rubber gasket of claim 1, wherein: The sealing gasket body (1) is in the shape of a circular ring.

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